Skill Build:
http://us.battle.net/d3/en/calculator/barbarian#chjkRP!XZgj!YbYccZ
Gear Set:
http://us.battle.net/d3/en/profile/Keithxm-6161/hero/60294003 or
http://i.imgur.com/mqtHg3i.jpg
Didn't expect that I can clear GR 54 when I started this season. Thought of just playing semi casually.
In any case, I ditched the usual PE for Gogok and maintain max fury for the 25% extra damage from Berserker Rage Passive. Tried 3 rounds with PE and it was really tough as I constantly need to rend about 6+ times to keep WotB up.
1st round wasn't too bad as I cleared all mobs with more than 10 mins remaining but I got !@#$ Sand Shaper which totally crushed me. 2nd and 3rd round was pretty rough with bad affixes and failure to keep WotB up as I didn't dare to rend.
Switch to Gogok for the fourth round and suddenly it became much easier. Keeping max fury and WotB is relatively easy. Lucky with mobs density and RG was Stone
. Cleared within 10 mins and 37 secs.